RU2342052C1 - Canned goods rotary sterilisation apparatus - Google Patents

Abstract

FIELD: mechanics.

SUBSTANCE: apparatus consists of three baths with hot water for canned goods sterilization, cooling chamber, shower devices and transporting mechanism with cans carriers. Note that shower devices intended for cans sprinkling are arranged ahead of the first bath entry and in between first, second and third baths. Transporting mechanism represents cans carriers hinged to two roller chains, the carrier shaft ends being fitted with rollers that make the carriers rotate about their axes. Rollers guides are arranged in baths and cooling chamber.

EFFECT: uniform heating and cooling water savings.

2 dwg

Description

The invention relates to the canning industry, and in particular to apparatus for the thermal sterilization of canned food, and can be used in the manufacture of canned food, packaged in glass and tin containers.

Sources used to search for devices for thermal sterilization of canned food showed that the prototype of this device can be a continuous pasteurizer-cooler [1], including transporting organs, pasteurization and combined cooling chambers, devices for supplying hot and atmospheric air, and also conveyors for feeding and unloading cans.

The disadvantages of this device are:

- long duration of heat treatment of canned food;

- uneven heat treatment of the product in banks;

- high consumption of cooling water in the cooling zone;

- the inability to sterilize canned food of a heterogeneous consistency (compotes, marinades, etc.);

- large overall dimensions.

The aim of the invention is to provide controlled rotation of the cans, reducing the duration of heat treatment, providing the possibility of sterilization of canned food of a heterogeneous consistency, as well as achieving uniform heat treatment, reducing the consumption of cooling water and reducing overall dimensions.

This goal is achieved due to the fact that the proposed apparatus provides three-stage heating of canned food in three successively installed baths with different temperatures, respectively 70, 85 and 100 ° C, and in areas at the entrance to the first and transitions between the first and second and second and third baths showers are installed for preheating cans with canned goods before entering them in the bath and to prevent cooling during transitions from the first to the second and from the second to the third bath. In addition, as a transporting mechanism for cans, carriers are used pivotally attached to two roller chains of the chains, which provide mechanical clamping of the cans, and at the ends of the shafts of which are removable rollers that ensure that the carriers with the cans rotate around their axes when they touch the guides installed in all bathtubs and cooling chamber, made with the possibility of movement in the vertical plane and fixing, to ensure contact with removable rollers when replacing them with rollers of another diameter Etra, making it possible to change the rotational speed of carriers with different types of banks.

The essence of the invention lies in the fact that the apparatus provides three-stage heating in three bathtubs with different water temperatures, respectively 70, 85 and 100 ° C, and at the entrance to the first bath and in the spaces between the first and second and second and third baths, shower devices are provided for irrigation of cans with hot water at a temperature of 5-10 ° C lower than the temperature of the water in the subsequent bath to heat cans with canned goods and prevent canned food from cooling when switching from the first bath to the second and from the second to the third; at the end of the cooling chamber, installed under the sterilization baths, it is provided to install water sprinklers with a temperature of 65-70 ° C, which allows cooling to be carried out in two stages - in a stream of atmospheric air (at the first stage) and in a stream of atmospheric air with a temperature film applied to the surface of the cans 65-70 ° C.

A diagram of the apparatus is shown in figures 1 and 2.

The apparatus consists of a frame 1, on which are fixed baths for heating 2, 3, 4, a cooling chamber 5, two roller chain chains 6, tensioned on sprockets 7, to which carriers 8 for cans 9 are pivotally mounted. Rollers are mounted on the ends of the shafts 10 of cans carriers 11, which when moving the media, touching the guides 12, inform the media with the banks of the rotational movement around its axis.

The guides 12 are made with the possibility of moving in a vertical plane relative to the walls of the bathtubs and the cooling chamber and fixing when replacing rollers of different diameters depending on the desired speed of carriers with cans for various cans.

The device operates as follows.

At the moment of stopping the roller chain at the loading and unloading unit, the cans 9 from the inlet conveyor 13 are fed into the can carriers by a special device (not shown), while unloading the sterilized cans from them, and when the chain 6 is further moved, the carrier with the cans before entering the first bath for preliminary heating is subjected to irrigation with hot water at a temperature of 60-65 ° C from the shower device 14, which will prevent thermal battle of cans; after the carrier with cans enters the first bath with hot water at a temperature of 70 ° C. In this case, the rollers mounted on the ends of the can holder carrier shaft are mounted on the guides 12 in the first bath and, rolling along them, inform the carrier with the cans of rotational movement about its axis, while the rotation frequency will depend on the diameter of the rollers; the larger the diameter, the lower the speed. Having passed the first bath, carriers with cans in the interval between the first and second baths fall under jets of hot water at a temperature of 75-80 ° C, supplied from the shower device 15, which ensures heating of the cans with the product in the interval between the exit from the first and the entrance to the second bath and thereby preventing the thermal battle of the cans. In the second bath, the product cans are heat-treated at a temperature of 85 ° C, and in the second bath, the can carriers also rotate by touching the rollers and the guide installed in the second bath.

Next, the carrier with cans leaves the second bath, while at the exit site, the carriers with cans are irrigated with hot water at a temperature of 90-95 ° C from the shower unit 16 and then enter the third bath, where they are sterilized at a temperature of 100 ° C. Next, the carriers with banks along with the roller chain are transferred to a cooling chamber located under the bathtubs for sterilization.

In the process of moving carriers with cans in the cooling chamber, they also rotate by touching the rollers 11 with the guides 12 installed in the cooling chamber, and are also cooled by the flow of atmospheric air in the first cooling stage and the flow of atmospheric air and the application of a water film at a temperature of 65- on the surface of the cans 70 ° C. supplied by spraying devices 18 in a second cooling step.

Passing the cooling chamber, the cans with the product are cooled and approach the loading and unloading unit, where at the moment the chain conveyor stops, the cans are unloaded to the discharge conveyor 17, new cans are loaded in their place from the inlet conveyor 18, and the process is repeated.

Literature

1. M.S. Aminov, M.S. Muradov, E.M. Aminova. Technological equipment of canneries and vegetable drying plants. M., 1996.

Claims (1)

Apparatus for rotational sterilization of canned food, characterized in that the apparatus consists of a frame on which three baths for sterilizing canned food are fixed in hot water at a temperature of 70, 85 and 100 ° C, respectively, and a cooling chamber, while in areas in front of the entrance to the first bath and at the sections of the transition of cans from the first to the second and from the second to the third baths, shower devices are provided for irrigating the cans with hot water at a temperature 5-10 ° C lower than the temperature of the water in the subsequent bath, as a conveyor for the can mechanism, use carriers with shafts hinged to two roller chains providing mechanical clamping of the cans with shafts on which rollers are mounted, which inform the carriers of rotational movement around their axis, and guide rails for the rollers are installed in the bathtubs and in the cooling chamber, while the guides are attached to the walls bathtubs, and cooling chambers with the ability to move in the vertical direction and fixation.

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